Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE) Get help from our free tutors ===> Algebra.Com stats: 2016 tutors, 419969 problems solved View all solved problems on Equations -- maybe yours has been solved already! Become a registered tutor (FREE) to answer students' questions. Click here to see problems AND answers on one page Question 320652: Janet can shovel snow from her driveway in 65 min. Bill can do the job in 35 min. How long would it take for them to do the job together? Click here to see answer by mananth(12270)   Question 320649: The speed of train A is 10 mph slower than train B. Train A travels 210 miles in the same time train B travels 260. What is the speeds of trains A & B ? Click here to see answer by mananth(12270)   Question 320783: what is the slope of x+2y=8? 1-what is the slope of a horizontal line? 2-what is the slope of x+2y=8? thank you Click here to see answer by stanbon(57395)   Question 320648: I am trying to find all numbers for which the rational expression is undefined t^3-8t/t^2-25 can you help? Click here to see answer by ankor@dixie-net.com(15661)   Question 320794: z-30=-40 Click here to see answer by rfer(12670)   Question 320806: 6 over sigma 3k k=3 Click here to see answer by solver91311(16897)   Question 320848: Three times the sum of a number and 7 Click here to see answer by stanbon(57395)   Question 320844: The cube of a number decreased by that number? Click here to see answer by jim_thompson5910(28598)   Question 320861: How do i solve 3x + 5 = 17 Click here to see answer by jim_thompson5910(28598)   Question 320863: four times the sum of R and S, increased by twice the difference of R and S Click here to see answer by jim_thompson5910(28598)   Question 320821: The function sqrt{ x^2 + 7x + 14} - x has one horizontal asymptote at y= Click here to see answer by Alan3354(30993)   Question 320937: -(x-2)+4x=5x-8-2(x-5) Click here to see answer by stanbon(57395)   Question 320942: Consider y= 6x+5(over)4x-3 Solve for x. I have no clue what to do...... Click here to see answer by Fombitz(13828)   Question 321109: x divided by 5 minus 5 equals 1 x/5 - 5 = 1 Click here to see answer by ehollins1(8)   Question 321163: I am very confused, I have absolutely no idea how to solve this word problem. Please help me solve the problem: If Sally can paint a house in four hours, John can paint the same house in six hours. How long will it take them to paint it together? Click here to see answer by Alan3354(30993)   Question 321163: I am very confused, I have absolutely no idea how to solve this word problem. Please help me solve the problem: If Sally can paint a house in four hours, John can paint the same house in six hours. How long will it take them to paint it together? Click here to see answer by mananth(12270)   Question 321232: Can you show me how to work this equation---please. (2x^3y)^3/(6xy3) these ( ) are one big one around both top and bottom each side.----sorry I do not know how to show that on a computer. Thanks Click here to see answer by stanbon(57395)   Question 321192: 900/G = 3/5, solve for G Click here to see answer by checkley77(12569)   Question 321405: 15-(2/3)x>-5 ? can you help me solve for the x? the answer is {x<30} but how do I get to that point? thanks Click here to see answer by Alan3354(30993)   Question 321406: can you help me with how to solve this? 5x^2-4x=33 ? (the ^2 means squared) thanks! Click here to see answer by ankor@dixie-net.com(15661)   Question 321415: The answer is 3... but the question is (8/x-2)-(13/2)= (3/2x-4) the (/) is a fraction, best I could put it. example.. 8 over x-2 then - 13 over 2= 3 over 2x-4... can you help me work the problem I already know the answer i just need help going thur how I got it. Thanks so much Click here to see answer by checkley77(12569)   Question 321468: Please help me answer by finding the sum of the following sequence of numbers: 2+4+6+8+.......296+298+300 Thanks in advance Click here to see answer by checkley77(12569)   Question 321468: Please help me answer by finding the sum of the following sequence of numbers: 2+4+6+8+.......296+298+300 Thanks in advance Click here to see answer by scott8148(6628)   Question 321468: Please help me answer by finding the sum of the following sequence of numbers: 2+4+6+8+.......296+298+300 Thanks in advance Click here to see answer by Edwin McCravy(8912)   Question 321467: Can you give me the formula and help me to answer the follwoing question: Find the following sum 35-36-37-38....145-145-150 Click here to see answer by checkley77(12569)   Question 321484: I submitted this question wrong initially, can someone help me with this: I need to find the sum: 35+36+37+38.....+145+146+150 thanks Click here to see answer by jim_thompson5910(28598)   Question 321517: can you solve this?... Which of the following expressions represents the product of 3 less than twice x and 2 more than the quantity 3 times x ? A. –6x2 + 25x + 6 B. 6x2 + 5x + 6 C. 6x2 – 5x + 6 D. 6x2 – 5x – 6 E. 6x2 – 13x – 6 and show how to work it? please and thank you. Click here to see answer by jim_thompson5910(28598)   Question 321541: factor completely x^3+7x^2-5x-35 Click here to see answer by jim_thompson5910(28598)   Question 321542: 1/2(4n-6)=11 Click here to see answer by jim_thompson5910(28598)   Question 321570: I am having difficulty with solving and checking the following equation. Can you please help me? 7x-8(x+1) = 4(x+3)-3x Click here to see answer by jim_thompson5910(28598)   Question 321570: I am having difficulty with solving and checking the following equation. Can you please help me? 7x-8(x+1) = 4(x+3)-3x Click here to see answer by mananth(12270)   Question 321633: i need help with solving variables on both sides the quetion is 2x+21=9x-7 Click here to see answer by Alan3354(30993)   Question 321707: I am having a lot of trouble with this problem, and cannot get it to work out. After going through several different methods I could think of, and each time getting a different and wrong answer, I still don't see how the answers of -1 and 6 are calculated. From what I remember, the first thing is that (y-9)(y-9)(y) is the common denominator, and so all is multiplied by a factor of one in that form, canceling out all denominators, which would leave us with 6(y-3)(y) - 2(y-3)(y-3) = 7y+3(y) This becomes -3y^2 - 9y - 18 = 0 And then -3(y^2 + 3y + 6) = 0 I cannot factor this, and so in using the quadratic formula I end up with a crazy number that is not the solution given on the practice test. Any help in figuring out where I'm going wrong would be much appreciated. Click here to see answer by Fombitz(13828)   Question 321707: I am having a lot of trouble with this problem, and cannot get it to work out. After going through several different methods I could think of, and each time getting a different and wrong answer, I still don't see how the answers of -1 and 6 are calculated. From what I remember, the first thing is that (y-9)(y-9)(y) is the common denominator, and so all is multiplied by a factor of one in that form, canceling out all denominators, which would leave us with 6(y-3)(y) - 2(y-3)(y-3) = 7y+3(y) This becomes -3y^2 - 9y - 18 = 0 And then -3(y^2 + 3y + 6) = 0 I cannot factor this, and so in using the quadratic formula I end up with a crazy number that is not the solution given on the practice test. Any help in figuring out where I'm going wrong would be much appreciated. Click here to see answer by solver91311(16897)   Question 321669: 5m+12-2m=48 What is m? Click here to see answer by Fombitz(13828)   Question 321729: Given a parabola with intersection points (-1,0), (2,0) and (0,-16) and a line which passes through (-5,-10) and (4,30), find an equation for the line and the parabola and the points of intersection between the two graphs if any. Click here to see answer by Fombitz(13828)   Question 321729: Given a parabola with intersection points (-1,0), (2,0) and (0,-16) and a line which passes through (-5,-10) and (4,30), find an equation for the line and the parabola and the points of intersection between the two graphs if any. Click here to see answer by solver91311(16897)   Question 321761: n10 / n4 = Click here to see answer by stanbon(57395)   Question 321860: if the given is f(x) = -3 + 4, how do i find f(a+1) Click here to see answer by solver91311(16897)   Question 321863: which 2 equations are parallel lines? a) y= -6x+9 b) y= 6x+4 c) y= 1/6x+4 d) y= -6x+4 Click here to see answer by solver91311(16897)   Question 321961: Please help me solve this problem (finding the pronumeral value) and explain the solution: 5t-7 divided by 19 = 2 Click here to see answer by Theo(3464)   Question 322019: what is the value of x if 1/4 x-5/8=3/8 Click here to see answer by Fombitz(13828)   Question 322019: what is the value of x if 1/4 x-5/8=3/8 Click here to see answer by mananth(12270)   Question 322021: what is the value of x if 1/4 x-1/8 x=3- 1/16 x Click here to see answer by mananth(12270)   Question 321960: Please help me solve this problem and explain the solution: -6y - 1 = 2 Click here to see answer by Edwin McCravy(8912)

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